diff options
Diffstat (limited to 'src/openvpn/mtu.c')
| -rw-r--r-- | src/openvpn/mtu.c | 29 |
1 files changed, 22 insertions, 7 deletions
diff --git a/src/openvpn/mtu.c b/src/openvpn/mtu.c index 3665a34..24531c9 100644 --- a/src/openvpn/mtu.c +++ b/src/openvpn/mtu.c @@ -153,17 +153,32 @@ frame_print (const struct frame *frame, #define MTUDISC_NOT_SUPPORTED_MSG "--mtu-disc is not supported on this OS" void -set_mtu_discover_type (int sd, int mtu_type) +set_mtu_discover_type (int sd, int mtu_type, sa_family_t proto_af) { if (mtu_type >= 0) { -#if defined(HAVE_SETSOCKOPT) && defined(SOL_IP) && defined(IP_MTU_DISCOVER) - if (setsockopt (sd, SOL_IP, IP_MTU_DISCOVER, (void *) &mtu_type, sizeof (mtu_type))) - msg (M_ERR, "Error setting IP_MTU_DISCOVER type=%d on TCP/UDP socket", - mtu_type); -#else - msg (M_FATAL, MTUDISC_NOT_SUPPORTED_MSG); + switch (proto_af) + { +#if defined(HAVE_SETSOCKOPT) && defined(IP_MTU_DISCOVER) + case AF_INET: + if (setsockopt + (sd, IPPROTO_IP, IP_MTU_DISCOVER, &mtu_type, sizeof (mtu_type))) + msg (M_ERR, "Error setting IP_MTU_DISCOVER type=%d on TCP/UDP socket", + mtu_type); + break; +#endif +#if defined(HAVE_SETSOCKOPT) && defined(IPV6_MTU_DISCOVER) + case AF_INET6: + if (setsockopt + (sd, IPPROTO_IPV6, IPV6_MTU_DISCOVER, &mtu_type, sizeof (mtu_type))) + msg (M_ERR, "Error setting IPV6_MTU_DISCOVER type=%d on TCP6/UDP6 socket", + mtu_type); + break; #endif + default: + msg (M_FATAL, MTUDISC_NOT_SUPPORTED_MSG); + break; + } } } |